AP/LM Otero
SAN FRANCISCO (Reuters) - An American Airlines Inc plane made an emergency landing in San Francisco on Monday after a number of interior wall panels came loose mid-flight, an airline spokesman said.

The flight, carrying 184 passengers and six crew, was en route for Dallas when the panels started to split at the seams, making a loud popping sound, American Airlines spokesman Matt Miller said.

The plane was a Boeing 757, according to flight tracking website FlightAware.com.

The captain initially said the plane would continue to Dallas as the cabin never lost pressure and oxygen masks did not deploy, Miller said. But after inspecting the panels he decided to return to San Francisco.

No one was injured and the plane landed safely around 2:15 p.m., Miller said.

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A passenger, James Wilson, told a local NBC channel people in the cabin started to scream when the panels peeled away.

Miller said the panels appeared to have come loose due to a blown air duct, adding that the Federal Aviation Administration had been contacted and an investigation launched.

The plane was taken out of service upon landing. The passengers remain in San Francisco and are scheduled to fly out on Tuesday morning, Miller said.